2020.4.1

New in vedo 2020.4.1

• Fixed pip problem (hopefully solving issue #185 raised by @RizzerOnGitHub)
• Typo in readme fixed (thanks to @danielhrisca)
• Global variable settings.collectable_actors is now obsolete and void.
• Various minor issues have been fixed too.

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addons.py:

• buildAxes() now admits a header title

• addScalarBar3D() returns self, use self.scalarbar to access the scalarbar
  object (e.g for scaling, rotating and repositioning it)

• makeLUT() renamed to buildLUT() with new examples, which includes
  indicators for NaN's and out of scale values:

  

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base.py:

• setTransform() -> applyTransform() accepts now a python or numpy matrix
  (thanks to @FedeClaudi input)
• added removePointArray() and removeCellArray() methods
• added divergence(), vorticity() methods
• added removePointArray() and removeCellArray() methods (thanks to @Tai-Hsien input)

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colors.py:

• added ask() method to prompt user input from command line
• added printc(dbg=1) mode to help debugging

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io.py:

• load() method can load and return normal npy or npz numpy data files

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mesh.py:

• clone(deep=True), deep can be False to generate a shallow copy of the obj.

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picture.py:

• polygonize(), create a polygonal Mesh from a Picture by filling regions
  above a specified threshold

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plotter.py:

• flyTo(), fly camera to the specified point.
• export(), to export scene.npz

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pointscloud.py

• interpolateDataFrom(), Interpolate over source to port its data
  onto the current object using various kernels.

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pyplot.py:

• removed directedgraph.clean() because it's just wrong (might marginally affect @DeepaMahm)
• added whisker() function to generate whisker-style plots

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shapes.py:

• added CSpline class, to generate a Cardinal Spline object.

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New examples:

vedo -r interpolateMeshArray
vedo -r interpolateScalar1
vedo -r spline_draw
vedo -r mesh_lut
vedo -r whiskers

2020.4.0

vedo 2020.4.0

Main changes

• mesh and volume data is moved from the package to vedo.embl.es/examples/data
  https://vedo.embl.es/examples/data/
  they are downloaded on the fly and cached

• 14 new polygonized 3D fonts are available, making the old vtk default obsolete
  Font: Bongas
  Font: Calco
  Font: Comae
  Font: Glasgo
  Font: Inversionz
  Font: Kanopus
  Font: LionelOfParis
  Font: LogoType (supports Russian, Japanese and Chinese chars)
  Font: Normografo
  Font: Quikhand
  Font: SmartCouric
  Font: Theemim
  Font: VictorMono

  Default font is Normografo, can be changed with e.g.
  settings.useDefaultFont = "Theemim"

  

  

  Latex-like syntax is supported in Text() allowing to use Greek and math symbols in axes and plot titles:
  Type vedo -r fonts to generate the above tables.

addons:

• Ruler(): create a 3D ruler to indicate the distance of two points
• buildRulerAxes(): a new axis style (7) formed by 3 rulers
  
• many improvements to default axis style 1
• New axis style 11: generates a thin lined square floor

Plotter:

• show(..., newplotter=True) -> show(..., new=True)
• added methods: render(), resetCamera() and backgroundColor(c1, c2, at)
• can now change transparency using arrow keys instead of "m,./"
  Pressing -+ cycles through available axes styles.

utils:

• added resampleArrays()
• systemReport()
• class dotdict: A dictionary supporting dot notation.
• trimesh2vtk() -> trimesh2vedo() (check @YimingXu1213)
• vtk2trimesh() -> vedo2trimesh()

io:

• can now save and load object transformation to .mat file

mesh and pointclouds:

• coloring with pointColors() and cellColors() is merged into method cmap()
• meshes can be described by new vignette() and caption()
  
• useBounds() tells the camera to keep inot account mesh when resetting
• added gradient() to return the gradient of the input scalar as numpy array

shapes:

• convexHull() -> ConvexHull()
• added VedoLogo() to generate the 3D logo of the package
• major improvements to Text()

examples:

• new or updated examples are:
  vedo -r isolines
vedo -r silhouette2 (thanks to @zhouzq-thu )
  vedo -r meshquality
vedo -r mesh_smoother2
vedo -r vpolyscope (needs pip install polyscope)
  vedo -r flag_labels
vedo -r customAxes
vedo -r fonts3d
vedo -r scatter2
vedo -r scatter3
vedo -r covid19
vedo -r caption

2020.3.4

Various improvements

• new examples:
  vedo -r multi_viewer
vedo -r clone2d
vedo -r plot_density
• read files and scenes from dropbox and/or web links
• vtkio.py moved to io.py
• fixed bug @jsanchez679 in cutWithMesh()
• mesh.normalize() does not shift to origin the mesh anymore
• improved axes=10 and axes=5 customization
• requires vtk<=8.1.2 as vtk-9 seems to have a lot of issues

2020.3.3

• fixed bug for obj format writing by @FedeClaudi
• fixed bug on Text2D justification

2020.3.1

• Various improvements and fixes
• better support for tetrahedral meshes
• non-blocking example added
• 3d text supports super/subscripts
• automatically detect spyder environment

2020.3.0

General changes:

• addPointScalars and addPointVectors now are merged into new addPointArray() method.
• addCellScalars and addCellVectors now are merged into new addCellArray() method.
• added mesh.isobands() to produce color bands for scalars in a mesh, analogous to isolines()
• completely revised addScalarbar and addScalarBar3D which now works also for volumes.
• can export a full html page with k3d with exportWindow("page.html")

New application module contains more elaborated and high level functionalities:

• Slicer() to generate a Plotter window with slicing planes for the input Volume.
• Slicer2d() creates a 2D window with a single balck and white slice of a Volume, which can be oriented arbitrarily in space.
• RayCaster() generates a Plotter window for volume rendering using ray casting.
• IsosurfaceBrowser() generates a Plotter window for Volume isosurfacing using a slider.
• Browser() generates a Plotter window to browse a list of objects using a slider.

In backends module for jupyter notebooks:

• Updated k3d interface to add mesh and volumes names in the rendering menu
• Improved rendering for lines.

In volume module:

• added slicePlane() to slice a volume in arbitrary orientation

2020.2.4

• Minor improvements.
• API change in smoothMLS2D() and smoothMLS1D()
• all examples can be run from command line e.g.
  vtkplotter -ir covid19
  or listed with
  vtkplotter --list

2020.2.3

various fixes

2020.2.1

• various bug fixes

2020.2.0

• improved vtkplotter.pyplot submodule
• background color now defaults to white
• added Mesh.idLabels() to generate cells and point ID labels
• methods like rotateX().pos() now operate in left-to-right order (as it should be)
• Text is split into Text2D and Text (for 3D)